Lathe body



y A. DRUMMOND.

LATHE aoo'v.

APPLICATION FILED JULY 27,192l.

warren start;

LATHE BODY.

Application filed July 27, 1921.

Specification of Letters Patent.

Patented May 9,1922.

Serial No. 487,980.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L, 1313.)

To all whom it may concern:

Be it known that I, ARTHUR DRUMMOND, a subject of the King of Great Britain, residing at Rydes Hill, near Guildford, in the county of Surrey, England, have invented certain new and useful Improvements in or Relating to Lathe Bodies, (for which I have filed an application in Great Britain July 12, 1919, Patent No. 140,681,) of which the following is a specification.

This invention relates to lathe bodies and particularly to improved means for connecting the legs or standards to the lathe bed, the chief object being to provide a construction which allows of very economical manufacture and does not require accuracy of workmanship.

According to this invention horizontal webs or flanges on the lower side of the bed and webs or flanges on the upper end of the legs or standards are made with deep notches or slots which can be superposed and cross each other, preferably at right angles, when the parts are assembled and so form holes at the crossing points to receive securing bolts which pass through the meeting webs. The bed and standards are cast with the said notches or slots and require no machining in order to make a good joint as the crossing of the notches or slots allows of large displacements without affecting the boltholes formed by their superposition. Accuracy of manufacture is therefore unnecessary to enable the parts to be locked together solidly by bolts and nuts.

In order that the said invention may be clearly understood and readily carried into efl'ect the same will now be described more fully with reference to the accompanying ends of the lathe bed and the standards supportlng the bed; and

Figure 2 isza plan of the top of one of the standards.

A is the lathe bed. B is the web or flange at the lower side of the bed, the web being provided at both back and front of the bed. C, C are the legs or standards formed with the connectlng web D at the top, the web being slightly recessed to provide narrow ribs 0 at the edges of the standards, which ribs make contact with the lower surface of the bed. V

As is seen in Figure 2 the web D is formed with the two deep notches or slots (Z at the inner side of the standard, the slots being lengthwise of the lathe. The flange or web B of the bed is formed with a pair of crossing slots 6 shown in dotted lines in Figure 2, the two pairs of slots providing at the points of crossing apertures or holes whichv receive the connecting bolts E securing the bed firmly on the standards by the aid of the nuts 6. As the bolt holes are displaceable through a considerable distance according to the points of crossing of the slots no reasonable error in manufacture will pre vent e'flicient connection being made between the bed and the standards.

What I claim and desire to secure by Letters Patent of the United States is Means for connecting the legs or standards of lathes to the bed, comprising ahorizontal web on the lower side of the bed and a corresponding web on the upper end of each leg or standard, the aforesaid webs having slots adapted to be superposed and when superposed to cross each other, and securing bolts passing through the said slots at their crossing points for connecting the aforesaid lathe members together.

ARTHUR DRUMl/ION D. 

